Shock Baton
Martial melee weapon, 1d4 Lightning damage, 1d4 Bludgeoning damage
This metal club is laden with crystals which deliver a sharp jolt on impact.
I look at them as more options than just the flame tongue or frost band why not lighting, acid, force etc etc I been doing this since my 1e days so the crystal makes sense and makes cool weapon options and does not need magic that wayThat is cool. A nice improvement on the original. It's damaging enough that someone might actually take it. It's got a good fantasy feel. And much less importantly, it does justify a Strength mod.
And you may even have invented a new sort of terrain. Imagine exploring or fighting in a cave where these crystals are growing, where any sudden impact or such sets them off.